London lawmakers are trying to get their hands on a £350 million bequest to Britain, but one condition of the bequest is preventing them from doing so.

The half-million pound bequest was made to Britain in 1928 and has since mushroomed to £350 million. The donor stipulated that trustee Barclays Bank should only hand over the money once Britain had amassed enough funds to pay off its entire national debt. With a debt totaling £1.2 trillion, Britain may be waiting a while longer.